) Find a 95% confidence interval. Give Lower and Upper confidence limits, explicitly. e) What assumptions are needed for these methods?

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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How do you solve d and e?

a) State the null hypothesis and the alternative hypothesis. Find the test statistic.
b) What is the p-value?
c) Provide your conclusion in the context of this problem. Use alpha = 0.02.
d) Find a 95% confidence interval. Give Lower and Upper confidence limits, explicitly.
e) What assumptions are needed for these methods?

1. A recent article in a magazine reported that a job awaits only one in three new college
graduates. The major reasons given were an overabundance of college graduates and a
weak economy. A survey of 200 recent graduates revealed that 80 students had jobs. At
the 0.02 significance level, can we conclude that a larger proportion of students have jobs?
Transcribed Image Text:1. A recent article in a magazine reported that a job awaits only one in three new college graduates. The major reasons given were an overabundance of college graduates and a weak economy. A survey of 200 recent graduates revealed that 80 students had jobs. At the 0.02 significance level, can we conclude that a larger proportion of students have jobs?
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